rainerzufalldererste / hypersonic-rans

Some of the fastest decoding range-based Asymetric Numeral Systems (rANS) codecs for x64

Hi, I'm Chris!

I'm excited about everything high performance & low level programming. I work on Video Codecs, Optimization, Game Engines, Data Structures, R&D stuff, Profilers/Analyzers/Compilers/Debuggers, Rendering, Binary-Obfuscation/DRM/Reverse-Engineering-Protection, ...

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Here are my favourite personal repositories & projects:

🧪 optim8.org - Online Performance Analysis Platform based on some of my other projects (zydec, execution-flow, UI, backend).

🚀 hypersonic-rle-kit - The fastest (possibly best) Run-Length-Encodings on the Planet. (Benchmarks)

🏎️ hypersonic-rANS - Some of the fastest decoding range-based Asymetric Numeral Systems (rANS) codecs. (still WIP, Benchmarks)

#️⃣ mediaLib - My main general-purpose library for larger Desktop & Graphics projects. (C++/OpenGL)

🌋 render-portfolio - Graphics & 3D Technology Portfolio/Blog. Terrain Erosion Simulation, Texture Atlases, and everything in between.

📈 silverpp - A lightweight user-mode profiler for Windows x64 with disassembler & instruction-level decompiler for hot code-paths.

🥷 llscript - A custom low-level programming language (compiler, debugger, byte-code interpreter) with shellcode-injectable runtime.

🖼️ limg - An experimental lossy image codec with a bunch of cool algorithmic & SIMD optimizations.

🩺 execution-flow - A static CPU performance analysis tool, that visualizes per-instruction resource utilization (based on llvm).

🧵 sformat - An easily-integrable, extendable, typesafe, UTF-8 compliant, non-copyleft string formatter for C++17.

🔢 ook - A simple & fast dynamically recursive Sodoku Solver. (Not SIMD, but still cool!)

🕸️ LamestWebserver - A neat Web-Server/Web-App/Web-UI framework I wrote in Uni and is incredibly easy to use.

hypersonic-rans's Issues

Have you heard about our lord and savior jpegxl?

If you don't know the format yet, jpeg xl is a still image format meant to succeed to the good old jpeg, developped by a team of developers scattered in Europe.
The codec was recently frozen and it uses, among other tricks, an rANS coder...
I'm sure the team would be happy to hear about your experience on the development of this highly optimized decoder...
if you never did, drop by the discord forum, to chat a bit 😊
https://discord.com/channels/794206087879852103/794206087879852106